Linux 4k resolution, create multiple openglwidget, will be killed by the system
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Linux 4k resolution, create multiple openglwidget, because memory usage is too large, resulting in kill by the system. . . If only the widget is no problem. Can you help me provide ideas?
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@ericyanhj Why does your app consume so much memory?
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I do not know why, this is where I am confused. This is a very simple program, just created a few qopenglwidget. However, The use of qwidget instead of qopenglwidget, the problem will not exist. (My English is not very good, please forgive me)
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@ericyanhj How do you know memory usage is too high? Could be that the problem is somewhere else.
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Because I use the "dmesg" command to view the above wrote "Out of memory: Kill process 15370".
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If QWidget works, but QOpenGLWidget fails with some out-of-memory error... my first thought would be to want to know more about how much graphics memory there is and whether there's enough to support multiple framebuffers and depth-buffers at the required resolution (5 UHD resolution 32-bit framebuffers and 16-bit depth buffers would probably fail on a GPU with only 512MByte or less).
